Health & Environmental Research Online (HERO)


Print Feedback Export to File
5553103 
Journal Article 
Characterization and selection for phosphorus deficiency tolerance in 99 spring wheat genotypes in Montana 
Epie, KE; Etesami, M; Ondoua, RN 
2019 
Yes 
Journal of Plant Nutrition
ISSN: 0190-4167
EISSN: 1532-4087 
42 
6 
595-603 
WOS:000461778100004 
Phosphorus (P) deficiency in soil is a common spring wheat production-limiting factor in Montana. In a pot experiment, three groups of spring wheat genotypes based on source (association mapping, 2016 off-station, and nested association mapping) were grown in 5 (P5) and 30 (P30) mg P kg(-1) potting mix conditions and screened for P deficiency tolerance. Plant height, tiller and head number, grain yields per pot measured were significantly different between P5 and P30 conditions (p < .05). Spring wheat genotypes: Unity, Peace, Vida, Reeder, CLTR 15134, ONeal and Fortuna yielded more grains, and equally took up more P in P5 conditions, revealing some degree of P deficiency tolerance. The genetic variability identified in this study for grain yields and P uptake could be used in wheat improvement programs for selecting genotypes with low P tolerance in P deficient soils as well as in organic spring wheat production. 
genotypes; grain phosphorus uptake; grain yield; phosphorus deficiency tolerance; spring wheat 
Other
• Third Biofuels Report to Congress
          20% to 30%